Home / 143,176.97-197,731.20-107,310.17

Finding the Fourth Proportional to 143,176.97, 197,731.20 and 107,310.17

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Solution

The fourth proportional to 143,176.97, 197,731.20 and 107,310.17 is: 148,198.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,176.97 : 197,731.20 = 107,310.17 : x
  2. Step 2: Convert to fraction form
    143,176.97/197,731.20 = 107,310.17/x
  3. Step 3: Cross multiply
    143,176.97x = 197,731.20 × 107,310.17
  4. Step 4: Simplify right side
    143,176.97x = 21,218,568,686.30
  5. Step 5: Solve for x
    x = 21,218,568,686.30/143,176.97
  6. Step 6: Final answer
    x = 148,198.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.